755 prompts matching "When the matrix method is worth the work for three unknowns"
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Simplifying an expression with brackets and indices together
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Algebraic long division of a simple polynomial by a linear factor
I am in SS 1. Quiz me with 4 short Additional Maths questions on dividing a simple cubic e
Explaining the difference between an expression and an equation
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Quiz me rapid-fire on expanding and factorising
I am in SS 1. I'm going to explain a rapid-fire quiz alternating between expanding a brack
Worked Example: What makes two surds equal
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Quiz: Reducing two surds to the same root in order to compare them
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Learn: Simplifying root 72 into its simplest form
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Quiz: Subtracting one surd from another
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Learn: The conjugate of a compound surd expression
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Quiz: Checking a surd equation for extraneous roots
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Learn: What a binary operation actually is
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Learn: What closure means for a binary operation
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Practice: Testing a set for closure under multiplication
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Learn: What it means for an operation to be commutative
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Learn: What an identity element is
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Quiz: Finding the identity element from an operation table
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Practice: Why an identity element must work from both sides
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Learn: Reading index notation, the base and the exponent
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Worked Example: Rewriting a negative index as a fraction
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Learn: Solving an equation by writing both sides to the same base
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